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ARINESSY Wear the light.

Size Guide

Use this page for body measurements and size conversions between AU, US, UK and EU. Each product page lists the sizes available and a note on how the style fits.

How to measure

Measure over your underwear, with the tape snug but not tight, and keep it level all the way around.

  • Bust — around the fullest part, tape flat across your back.
  • Waist — around the narrowest part of your torso, usually just above the navel.
  • Hip — around the fullest part of your hips and seat, roughly 20 cm below your waist.
  • Inseam — from the crotch seam down the inside of the leg to the ankle.

If you fall between two sizes, take the larger size for tailored, non-stretch and lined styles; stay with the smaller size for knits and anything described as relaxed or oversized.

Women’s clothing — body measurements

AU / UK US EU Letter Bust (cm) Waist (cm) Hip (cm)
6 2 34 XS 78–81 60–63 86–89
8 4 36 S 83–86 65–68 91–94
10 6 38 M 88–91 70–73 96–99
12 8 40 L 93–96 75–78 101–104
14 10 42 XL 98–103 80–85 106–111
16 12 44 XXL 105–110 87–92 113–118

Denim and trousers — waist

AU US Waist (cm) Hip (cm)
6 24–25 60–63 86–89
8 26 65–68 91–94
10 27–28 70–73 96–99
12 29 75–78 101–104
14 30–31 80–85 106–111
16 32 87–92 113–118

Standard inseam is 78 cm for full length and 68 cm for cropped, unless the product page says otherwise.

Reading the product page

On every product page we list:

  • Sizes available — AU 6 to AU 16, with sizes that have sold out shown struck through.
  • Cut and fit — a description of how the style sits and moves.
  • Fit note where a style runs small, large, short or long.

Still not sure?

Email [email protected] with your bust, waist and hip measurements and the style you are looking at, and we will tell you which size to take — or tell you honestly if we do not think it will work.

And if it still is not right when it arrives, you have 30 days to exchange or return it. See our Refund & Returns Policy.